I am looking for information if anyone can help. I just purchased a 2011 or 2012 fender blacktop jazz bass from a college kid, only to get home and find that the pickups at the neck have almost zero output. If you turn the neck pickup all the way up, you can hear signal, but it is very weak. When you turn the bridge pickup less than five percent, it surpasses the neck pickup volume. It sounds great, but I need to know if my problem is in the pickups or in the pot. This thing is in near pristine condition and shows no sign of having been messed with. Pickup height is not the problem, I even tried to set the neck pickups so high that they nearly touched the strings, only helped a little. I know there is someone out there that can lead me the right direction.